END STRUCTURE OF PRECEDING ELEMENT AND CONSTRUCTION METHOD OF CONTINUOUS UNDERGROUND WALL

PROBLEM TO BE SOLVED: To provide an end structure of a preceding element and a construction method of a continuous underground wall in which the continuous underground wall with water-stopping properties and cross section force transmission performance is made possible to be constructed simply and at low cost.SOLUTION: An end structure 1B of a preceding element includes a partition plate 11 disposed in the boundary between a preceding element 1 and a succeeding element 2, a connecting member 12 projected to the side face of the succeeding element 2 side of the partition plate 11, and a space forming member 15 for forming a space around the connecting member 12. The space forming member 15 has a shape holding part 152 attached to the tip of the connecting member 12, and a cover part 151 for covering the connecting member 12 and the shape holding part 152. At least the cover part 151 can be cut by a ground excavator.SELECTED DRAWING: Figure 5 【課題】止水性および断面力伝達性能を備えた地中連続壁を簡易かつ安価に構築することを可能とした、先行エレメントの端部構造および地中連続壁の施工方法を提案する。【解決手段】先行エレメント１と後行エレメント２との境界部に配設される仕切板１１と、仕切板１１の後行エレメント２側の側面に突設された接続部材１２と、接続部材１２の周囲に空間を形成する空間形成部材１５とを備える先行エレメントの端部構造１Ｂであって、空間形成部材１５は、接続部材１２の先端に添設された形状保持部１５２と、接続部材１２および形状保持部１５２を覆うカバー部１５１とを有しており、少なくともカバー部１５１が地盤掘削機により切削可能である。【選択図】図５